{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Although it is difficult to define causality in a case report , it is logical to think that a beta - agonist like salbutamol ( known to induce tachycardia ) may be the trigger of adrenergic reflexes originating in the esophagus while swallowing and that a beta - blocker such as atenolol ( that blocks the adrenergic activity ) may relieve it ."}
{"Disease": ["tachycardia"], "Chemical": ["salbutamol", "atenolol"]}